Home / 81,380.73-122,090.13-25,217.91

Finding the Fourth Proportional to 81,380.73, 122,090.13 and 25,217.91

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Solution

The fourth proportional to 81,380.73, 122,090.13 and 25,217.91 is: 37,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,380.73 : 122,090.13 = 25,217.91 : x
  2. Step 2: Convert to fraction form
    81,380.73/122,090.13 = 25,217.91/x
  3. Step 3: Cross multiply
    81,380.73x = 122,090.13 × 25,217.91
  4. Step 4: Simplify right side
    81,380.73x = 3,078,857,910.23
  5. Step 5: Solve for x
    x = 3,078,857,910.23/81,380.73
  6. Step 6: Final answer
    x = 37,832.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.